C# 4 and .NET 4

simple service and Client ❘ 1289
Adding a service reference adds references to the assemblies System.Runtime.Serialization and
System.ServiceModel and a configuration file containing the binding information and the endpoint
address to the service.
From the data contract the class RoomReservation is generated. This class contains all [DataMember]
elements of the contract. The class RoomServiceClient is the proxy for the client that contains methods that
are defined by the service contract. Using this client, you can send a room reservation to the running service.
private void OnReserveRoom(object sender, RoutedEventArgs e)
{
var reservation = new RoomReservation()
{
RoomName = textRoom.Text,
Event = textEvent.Text,
Contact = textContact.Text,
StartDate = DateTime.Parse(textStartTime.Text),
EndDate = DateTime.Parse(textEndTime.Text)
};
}
var client = new RoomServiceClient();
bool reserved = client.ReserveRoom(reservation);
client.Close();
if (reserved)
MessageBox.Show("reservation ok");
code snippet RoomReservationClient/MainWindow.xaml.cs
By running both the service and the client, you can add room reservations to the database. With the
settings of the RoomReservation solution, you can configure multiple startup projects, which should be
RoomReservationClient and RoomReservationHost in this case.
diagnostics
When running a client and service application, it can be very helpful to know what’s happening behind
the scenes. For this, WCF makes use of a trace source that just needs to be configured. You can configure
tracing using the Service Configuration Editor, selecting Diagnostics, and enabling Tracing and Message
Logging. Setting the trace level of the trace sources to Verbose produces very detailed information. This
configuration change adds trace sources and listeners to the application configuration file as shown here:
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